Instead of using a svn server of html docs, wouldn't be better to use the wiki, which is specifically designed for this type of collaborative work?
I think in this - and in many other projects - there's a useless duplication of information between manual, forum and wiki. The wiki seems IMO the best way to publish and organize information, so I would auspicate a conversion filter between upp docs files and the wiki. Don't know how much work this would require, for sure many people who have to share information about their upp-related projects would like a similar solution.
Unfortunatley I don't have time to write any code at present, this is just an idea.